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/*
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) DIGITEO - 2009 - Sylvestre Ledru
*
* This file is released under the 3-clause BSD license. See COPYING-BSD.
*
* This example shows how to read / write a matrix of string from Scilab engine
*/
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "api_scilab.h"
#include "call_scilab.h" /* Provide functions to call Scilab engine */
/*------------------------------------------------------------*/
int main(void)
{
#ifdef _MSC_VER
if ( StartScilab(NULL, NULL, 0) == FALSE )
#else
if ( StartScilab(getenv("SCI"), NULL, 0) == FALSE )
#endif
{
fprintf(stderr, "Error while calling StartScilab\n");
return -1;
}
/******************************** WRITE ****************************/
/*
* Write a single string into Scilab
* A="my Message";
*/
{
SciErr sciErr;
int row = 2, col = 1; /* Size of the matrix */
/* Declare the string */
char **myMatrixOfString = (char**)malloc(sizeof(char*) * row * col);
char variableName[] = "A";
myMatrixOfString[0] = "my Message";
myMatrixOfString[1] = "on two lines";
/* Write it into Scilab's memory */
sciErr = createNamedMatrixOfString(pvApiCtx, variableName, row, col, myMatrixOfString);
if (sciErr.iErr)
{
printError(&sciErr, 0);
}
printf("Display from Scilab of A:\n");
SendScilabJob("disp(A);"); /* Display A */
}
{
/*
* Write a matrix into Scilab
* B=['My' 'Great' ;
* 'String' ';)' ]
* Note that it is done column by column
*/
int row = 2, col = 2; /* Size of the matrix */
/* Declare the string */
char **myMatrixOfStringB = (char**)malloc(sizeof(char*) * row * col);
char variableNameB[] = "B";
SciErr sciErr;
printf("\n");
myMatrixOfStringB[0] = "My";
myMatrixOfStringB[1] = "String";
myMatrixOfStringB[2] = "Great";
myMatrixOfStringB[3] = ";)";
sciErr = createNamedMatrixOfString(pvApiCtx, variableNameB, row, col, myMatrixOfStringB);
if (sciErr.iErr)
{
printError(&sciErr, 0);
}
printf("\n");
printf("Display from Scilab of B:\n");
SendScilabJob("disp(B);"); /* Display B */
}
/******************************** READ ****************************/
/* Load the previously set variable A */
{
char variableToBeRetrieved[] = "A";
int iRows = 0;
int iCols = 0;
int i, j;
int* piAddr = NULL;
int* piLen = NULL;
char** pstData = NULL;
SciErr sciErr;
//first call to retrieve dimensions
sciErr = readNamedMatrixOfString(pvApiCtx, variableToBeRetrieved, &iRows, &iCols, NULL, NULL);
if (sciErr.iErr)
{
printError(&sciErr, 0);
}
piLen = (int*)malloc(sizeof(int) * iRows * iCols);
//second call to retrieve length of each string
sciErr = readNamedMatrixOfString(pvApiCtx, variableToBeRetrieved, &iRows, &iCols, piLen, NULL);
if (sciErr.iErr)
{
printError(&sciErr, 0);
}
pstData = (char**)malloc(sizeof(char*) * iRows * iCols);
for (i = 0 ; i < iRows * iCols ; i++)
{
pstData[i] = (char*)malloc(sizeof(char) * (piLen[i] + 1));//+ 1 for null termination
}
//third call to retrieve data
sciErr = readNamedMatrixOfString(pvApiCtx, variableToBeRetrieved, &iRows, &iCols, piLen, pstData);
if (sciErr.iErr)
{
printError(&sciErr, 0);
}
printf("\n");
printf("Load and display of A:\n");
for (j = 0 ; j < iCols ; j++)
{
for (i = 0 ; i < iRows ; i++)
{
/* Display the formated matrix with same scilab indice */
printf("[%d,%d] = %s\n", j + 1, i + 1, pstData[j * iRows + i]);
}
}
printf("\n");
free(piLen);
for (i = 0 ; i < iRows * iCols ; i++)
{
free(pstData[i]);
}
free(pstData);
}
/* Load an element of the previously set variable B */
{
char variableToBeRetrieved[] = "B";
int iRows = 0;
int iCols = 0;
int i, j;
int* piAddr = NULL;
int* piLen = NULL;
char** pstData = NULL;
SciErr sciErr;
//first call to retrieve dimensions
sciErr = readNamedMatrixOfString(pvApiCtx, variableToBeRetrieved, &iRows, &iCols, NULL, NULL);
if (sciErr.iErr)
{
printError(&sciErr, 0);
}
piLen = (int*)malloc(sizeof(int) * iRows * iCols);
//second call to retrieve length of each string
sciErr = readNamedMatrixOfString(pvApiCtx, variableToBeRetrieved, &iRows, &iCols, piLen, NULL);
if (sciErr.iErr)
{
printError(&sciErr, 0);
}
pstData = (char**)malloc(sizeof(char*) * iRows * iCols);
for (i = 0 ; i < iRows * iCols ; i++)
{
pstData[i] = (char*)malloc(sizeof(char) * (piLen[i] + 1));//+ 1 for null termination
}
//third call to retrieve data
sciErr = readNamedMatrixOfString(pvApiCtx, variableToBeRetrieved, &iRows, &iCols, piLen, pstData);
if (sciErr.iErr)
{
printError(&sciErr, 0);
}
printf("\n");
printf("Load and display of B:\n");
for (j = 0 ; j < iCols ; j++)
{
for (i = 0 ; i < iRows ; i++)
{
/* Display the formated matrix with same scilab indice */
printf("[%d,%d] = %s\n", j + 1, i + 1, pstData[j * iRows + i]);
}
}
printf("\n");
free(piLen);
for (i = 0 ; i < iRows * iCols ; i++)
{
free(pstData[i]);
}
free(pstData);
}
if ( TerminateScilab(NULL) == FALSE )
{
fprintf(stderr, "Error while calling TerminateScilab\n");
return -2;
}
return 0;
}
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